Apparatus for graining



(No Model.)

J. H. AUBLE.

APPARATUS FOR GRAINING.

No. 337,729. Patented Mar. 9, 1886.

1 III/ WITNESSES. INVENTOR ATTORNEY NITED STATES ATENT OFFICE..

IIALF TO JOH) OLOKE,

OF CINCINNATI, OHIO.

APPARATUS FOR GRAINING.

SPECIFICATION forming part of Letters Patent No. 337,729, dated March 9, 1886.

Application filed August 4. 1885.

To all whom it may concern:

Be it known that I, J AMES HARLEY AUBLE, a citizen of the United States, and a resident of Lawrenceburg, in the county of Dearborn and State of Indiana, have invented certain new and useful Improvements in Devices Employed in the Process of Graining \Vood, of which the following is a specification.

The process of graining woods, especially 1o furniture, by hand has been to a large extent superseded by a process in which a slab of the actual wood to be represented is taken as a type and the graining printed from it. In carrying out this process the slab of board is first carefully beveled and smoothed. A thin coat of shellac or equivalent coating is then given to the board, and this, upon drying, opens the pores of the wood, following the grain. The board is now ready to be used as 0 a type, and after being placed in a proper receptacle it is flooded with an excess of color. This color should be rather viscid, and left on long enough to infiltrate the pores or cracks. The excess of color is now scraped off, and a 2 5 roller, preferably elastic and of large diameter, is rolled over the board to the extent of one revolution. The color which had infiltrated the cracks clings to the roller, and is transferred from it to a piece of clean board by simply rolling the charged roller over it. The graining obtained in this way is. a perfect duplicate of the grain of a piece of naturalwood, and not an attempt at imitation.

My invention relates to a step in this pro 3 5 cess. The removal of the surplus color from the board has heretofore been accomplished by metal scrapers, consisting simply of a flat sheet of iron operated by hand. These scrapers often injure the surface of the wood.

My invention provides a new and effective device for this purpose, which possesses many adVant-agesover the old devices and performs a new function.

In the accompanying drawings, Figure l is 5 a side elevation of my device. Fig. 2 is an end elevation of the same. Fig. 3 is a sectional elevation of the scraper proper, taken at the line a of Fig. 2. Fig. 4 is a central cross-section of the scraper proper.

Two stringers, D D, have the grainingboard D securely attached to them, prefer- Serial No. 173,494. (No model.)

ably by tongue and groove, as shown in Fig. 2. The stringers and graining-board together form a sort of box, into which the color is poured. The scraper is supported on a'carrier which rolls on the stringers D. The pre ferred construction of the carrier is that shown in the drawings. Over each stringer is placed a frame, A, supported on rollers 10. Beneath the stringers are also frames 13, likewise furnished with rollers 10, to bear against the face of the stringers. These two pairs of frames are bound together by bands which entirely surround them and the box composed of the board D and the stringers. In the drawings these bands are shown as frames made of wood, consisting of the pieces B b b and B b b. The upper frames, A, being used as journal-bearings, have the axle of the scraper journaled on them and held in position by the journal-cap A. The scraper or distributer M has a flat stiff plate, 0, as its base. The plate C is balanced on the axle S. The frame It may be a solid plate, but is preferably a rod bent to the desired shape. There are two frames h, one on each side of the axle, around which they turn.

The mode of attachment to the axle is preferably that shown in Fig. 4, where the end of the rod h is seen bent around the axle. Thumb-screws f serve to clamp the rods h down onto the plate 0. Pieces of leather, L, are inserted between the plate 0 and the frames h, and held securely by the clampscrcwsf.

The dotted lines in Fig. 4 show the position of the frames h when they are raised to put the leathers in position. The leather projects over the edge of the plate 0 and forms the scraping-edge. Other material than leather could be used, but the requisite stiffness and flexibility are found best combined in this substance. A handle, H, rigidly attached to the plate O, projects at right angles therefrom.

In operation the graining-board D is first flooded with color, as already described. The 95 carrier is then rolled to a point beyond the color, the scraper turned down to the surface of the board, and by the aid of the handle H it is carried forward, scraping the surface of the board, and carrying the surplus color before it. This prepares the surface of the board After the roller has for the printing-roller.

been passed over the board and has taken up the color the scraper is raised to a level, carried beyond the paint, and turned back over the ground it first traversed. In this second movement it carries the color before it, and, in addition, leaves enough behind to prepare the board again for the roller, so that, in addition to scraping, it performs the function of a distributer. Much time is saved by the use of this device, especially in consequence of its double action. The leather edge is a better scraper than is a metallic one, and at the same time it does not injure the surface of the graining-board.

The several features of my invention are preferably employed together, but one or more of them may be used without the remainder, and in so far as applicable'one or more of said features may be used in connection with devices employed in the process ofgraining wood other than the one herein specifically set forth.

What I claim as new and of my invention, and desire to secure by Letters Patent, is.

1. In a device for preparing a board for a graining type, a distributing-scraper mounted on a movable carriage, substantially as and for the purposes specified.

2. In a device for preparing a board for a graining type, a distributing-scraper mounted on a carriage, which latter moves on the sides of the preparing-box as ways, substantially as and for the purposes specified.

3. The combination of the stringers D, board D, and carriage A A, provided with rollers w and carrying a scraper, substantially as and 3 5 for the purposes specific 4:- The combination of the stringers D, board D, and carriage A A, provided with rollers w and carrying an oscillating scraper, substantially as and for the purposes specified.

5. In a device for preparing a board for a graining type, an oscillating scraper, substantially as and for the purposes specified.

6. In a device for preparing a board for a graining type, a scraper provided with a leath- 4 5 er edge, substantially as and for the purposes specified.

7. The scraper M, consisting of the plate 0, mounted on the axle S and provided with clamps h h, leathers L, and handle H, substantially as and for the purposes specified.

8. The combination of the stringers D, board D, carriage A A B B B B b b w w, and scraper M, substantially as and for the purposes specified. 55

9. The scraper M, consisting of the plate 0, mounted on the axle S and provided with clamps h h, leathers L, handle H, supportingcarriage, and board D, substantially as and for the purposes specified.

JAMES HARLEY AUBLE.

Witnesses:

DAVID E. FREEMAN, THOMAS AcHILLEs. 

